public override CssAtRule Copy()
{
FontFeatureValuesRule at = new FontFeatureValuesRule();
at.FontName = FontName;
at.Entries = Entries;
at.RawValue = RawValue;
at.ParentSheet = ParentSheet;
return(at);
}
public override Rule LoadRule(Css.Rule parent, StyleSheet sheet, Css.Value value)
{
// Grab the sheet:
ParentSheet = sheet;
RawValue = value;
FontFeatureValuesRule parentRule = parent as FontFeatureValuesRule;
// Add to lookup:
parentRule.FeatureLookup[FeatureName] = this;
// Load the OpenType rules now:
int count = value.Count;
// Get the block:
PropertyMapUnit sBlock = value[count - 1] as PropertyMapUnit;
if (sBlock == null)
{
// Try as a set instead:
ValueSet set = value[count - 1] as ValueSet;
if (set == null)
{
// Invalid/ unrecognised block. Ignore it.
return(null);
}
// Get last one in the set:
sBlock = set[set.Count - 1] as PropertyMapUnit;
// still null?
if (sBlock == null)
{
// Invalid/ unrecognised block. Ignore it.
return(null);
}
}
// - For each CSS property (each of which is a user defined identifier)..
foreach (KeyValuePair <string, Css.Value> kvp in sBlock.Properties)
{
// Create our feature list:
List <OpenTypeFeature> features = new List <OpenTypeFeature>();
// Map to open type feature now:
ToOpenTypeFeature(kvp.Value, features);
// Put it into the properties set:
Properties[kvp.Key] = features;
}
return(this);
}